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Rack-SAT – Distribution system of satellite signals in 19″ racks

Stacje czołowe TV DVB-C DVB-T IPTV

Practically all new TV headends in DVB-C, DVB-T and IPTV technologies are adapted for installation in 19″ racks, while the market lacks solutions dedicated to the distribution of satellite signals in 19 in 19″ racks.

Until now it has happened that the distribution of satellite signals was carried out “ad hoc” by installing subsequent cascades of signal splitters, without paying particular attention to the signal level at the outputs of the next splitter. It is well known that the quality of satellite signal reception is strongly dependent on current weather conditions – heavy rain, snow or ice on the dish of the satellite dish significantly reduce the level and quality of the satellite signal. If you receive satellite signals in such installations with several splitter cascades, you may find that satellite reception is unstable and highly dependent on current weather conditions.


Examples of television installations

Examples of elements of television installations mounted in 19″ rack

Rack-SAT-01b

To meet the needs of orderly distribution of satellite signals while maintaining its high quality, we offer a universal satellite signal distribution system, whose basic element is the 2RU rack for the 19″ rack:


Rack-SAT-6-L


The equipment and front panel of this shelf can be configured in several different ways, depending on your requirements, several typical configurations are shown below.



2 cascades of 9/16 multiswitches

VARIANT No. I


Inside the rack two cascades of 9/16 multiswitches are installed, which ensure cooperation with headends or other similar devices. Control of satellite signal switching is from the headend – it is possible to remotely switch the signal supplied to the head of the satellite of the headend to any other satellite transponder using 13 / 18V + 0 / 22kHz + DiSEqC 1.0 control typical for multiswitch systems or DiSEqC 2.0 commands.

Front panel view:

Twin multi 2HU

Multiswitches from WISI Communications GmbH are installed in the rack, which are designed for 24/7/365 continuous operation. These devices are characterized by very high reliability and at the same time low power consumption.

Advantages of the solution:

  • Possibility of remote operation of the headend for receiving signals from two satellites – e.g. Hot Bird + Astra,
  • Two independent multiswitch systems with 16 signal outputs each, which can be combined into one system with 32 signal outputs,
  • High-quality multiswitch system from WISI Communications GmbH,
  • Integrated power supply for satellite antennas,
  • Possibility of redundant system power supply from two high-quality switching power supplies with short-circuit protection.

Typical Applications:

  • TVK / IPTV headend in a separate room with full remote control,
  • TV head in the hotel, operated remotely via the Internet,
  • Multiswitch installation mounted in the 19″ rack – RACK-SAT system compatible with the so-called Building Regulation (Journal of Laws of 22.11.2012, item 1289).


2 cascades of 5/24 multiswitches

VARIANT No. II


Inside the rack are installed two 5/24 multiswitch cascades, which ensure cooperation with headends or other similar devices. Control of satellite signal switching is carried out from the headend level – it is possible to remotely switch the signal delivered to the head of the satellite of the headend to any other satellite transponder from the same satellite using 13 / 18V + 0 / 22kHz control typical for multiswitch systems.

Front panel view:

Panel W2

Multiswitches from WISI Communications GmbH are installed in the rack, which are designed for 24/7/365 continuous operation. These devices are characterized by very high reliability and at the same time low power consumption.

Advantages of the solution:

  • Possibility of remote operation of the headend for the separate reception of signals from two satellites – e.g. Hot Bird (cascade No. 1) and Astra (cascade No. 2),
  • Two independent multiswitch systems with 24 signal outputs each, which can be combined into one system with 48 signal outputs,
  • High-quality multiswitch system from WISI Communications GmbH,
  • Integrated power supply for satellite antennas,
  • Possibility of redundant system power supply from two high-quality switching power supplies with short-circuit protection.

Typical Applications:

  • TVK / IPTV headend in a separate room with full remote control,
  • 19″ rack multiswitch installation – RACK-SAT system for one satellite.


1 cascade of 5/24 multiswitches

VARIANT No. III


The rack with one cascade 5/24 multiswitches, similar to Variant No. II. The second part of the rack was used to install a satellite amplifier with a set of splitters, acting together as a 4-fold active splitter with 11 outputs.

Front panel view:

Panel W3

Multiswitches and an amplifier from WISI Communications GmbH are installed in the rack, which are designed for 24/7/365 continuous operation. These devices are characterized by very high reliability and at the same time low power consumption.

Advantages of the solution:

  • Possibility of remote operation of some of the headend equipment in the field of signal reception, e.g. from the Hot Bird satellite,
  • Possibility to connect selected polarization of satellite signals to appropriate receiving heads in the headend,
  • High-quality multiswitch system, amplifiers and passive components from WISI Communications GmbH,
  • Integrated power supply for satellite antennas,
  • Possibility of redundant system power supply from two high-quality switching power supplies with short-circuit protection.

Typical Applications:

  • TVK headend with ongoing technical support, in which some of the receiving heads are tuned in the scope of reception from one satellite (e.g. decoders provided by broadcasters, testing the reception of new programs, etc.) and with partial distribution of individual polarization of satellite signals to specific receiving heads.
  • Multiswitch installation with headend, in 19″ rack mounted – RACK-SAT multiswitch system for one satellite with additional satellite programs processed for television signals (e.g. DVB-T).


Satellite amplifier with 8 signal paths

VARIANT No. IV


Inside the rack is installed a high-quality satellite amplifier with 8 signal paths and appropriately configured splitter kits, acting together as an 8-fold active splitter.

Front panel view:

Panel W3

An amplifier from WISI Communications GmbH is installed in the rack, which is designed for 24/7/365 continuous operation. This device is characterized by very high reliability and low power consumption at the same time.

Advantages of the solution:

  • The ability to cascade selected polarities of satellite signals in order to obtain a sufficiently large number of output ports,
  • High quality amplifier and passive components from WISI Communications GmbH,
  • Integrated power supply for satellite antennas,
  • Possibility of redundant system power supply from two high-quality switching power supplies with short-circuit protection.

Typical Applications:

  • TVK headend station with ongoing technical support, in which the distribution of individual polarization of satellite signals to specific receiving heads is carried out by making the appropriate cable connection.
  • The solution is recommended for Polish TVK / IPTV operators, as the following number of output ports can be obtained:
    • Hot Bird VL = 9 * + 11 + 11 = 31 output ports
    • Hot Bird HL = 11 output ports
    • Hot Bird VH = 9 output ports
    • Hot Bird HH = 9 output ports
    • Astra 4A (Sirius) VH = 5 output ports
    • Astra 4A (Sirius) HH = 5 output ports
    • (*) 11 outputs from the first splitter – 1 output to the second splitter – 1 output to the third splitter = 9 outputs available for use.


4x 1:7 passive satellite splitter

The DC 28 4S0T panel contains a set of 4 passive 7-output satellite splitters:

Rack-SAT-Panel-W4b

Passive 4-output 7-output splitter can be used e.g. for the orderly distribution of signals from the Astra 19.2°E satellite, as a complement to the set of splitters described in Variant No. IV.



Mounting accessories for 19 racks:


Horizontal cable guide

The horizontal cable guide will ensure orderly cable routing to the sides of the rack:

Rack-SAT-Enda

Panel 1 RU with brush strip

Panel 1 RU with a brush grommet will allow for an aesthetic passage of cables with connectors to the inside of the 19″ rack, when e.g. satellite head inputs are located on the back of the installed devices:

Rack-SAT-Endb

If you have any unusual requirements, we are happy to read them and we will definitely offer a professional solution. Please contact us.



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